How to Calculate Stream or drainage Length and Density in ArcGIS
You will learn how to calculate drainage or stream length and density using ArcGIS.
Delineating Watershed: • Watershed Delineation ...
Download DEM Data: • Digital Elevation Mode...
Why is stream density important?
Stream density, also known as drainage density, varies from watershed to watershed depending on infiltration capacity, or the ability of the soil to absorb water. When infiltration is low, water will flow overland and form streams. Certain kinds of geology (like sand, gravel, or limestone) have high infiltration, while others (like shale or clay) have low infiltration. Watersheds with high stream density have higher runoff and land that is more susceptible to erosion. Topography and slope also influence infiltration, with greater stream density occurring in areas with steep slopes. High rainfall tends to increase stream density, but in areas with the highest rainfall, stream density may be reduced; dense vegetation in these rain-prone areas reduces overland flow and increases evapotranspiration (the transfer of water from the earth to the atmosphere through evaporation and transpiration of plant leaves). Stream density is an important watershed characteristic that can be an indicator of potential water supply (Source: Enviro Atlas, USA).
How can I use this information?
The map, Stream Density, can be used to compare opportunities for recreation and water supply in different watersheds. Watersheds with high stream density provide more opportunities for birding, boating, fishing, swimming, and hunting. High stream density is also indicative of the potential for plentiful water supply (Source: Enviro Atlas, USA)..
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#Akash_Shafiqe #stream_density_calculation #calculating_stream_drainage_density #arcgis_tutorial #GIS_RS_SOLUTION
Пікірлер: 27
My population field doesn't show any of the options you have. It shows (none, elevation, stream ID, inflow and outflow) Can you tell me how to correct this problem?
What does line density indicate?
Can u please make a video on stream frequency?? ASAP need for my project
Sir plz tell me one thing how u have created stream bcoz while doing watershed delineation u have not done like so.
How to measure the basin length if my watershed is curved?
hello, than;s for this Video , please could you tell me the number of stream Density = 60 that's mean the density is hard or normal and tell us yhe average of the number that mean the density is hard or normal, thanks alot.
Great. How do I download the data for specific area? Because here you already have the shp data.
@GISRSSolution
3 жыл бұрын
Download DEM data kzread.info/dash/bejne/doeHs5KBorefkso.html Download Shape file kzread.info/dash/bejne/mX6Ol6iQd5nQeLA.html If you have any queries more, feel free to ask me.
Is area of 0.327837 m^2 right? i saw meter being used the whole time but is it meter or on km we need to work on? my stream density came about 0.000714 with area of 12322166366.1 m^2 and length of 8792415.031586 m. doing it of a province
bro when I click on line density, I am unable to change units. Its default units are SQUARE_MAP_UNITS
@hikikomorihachiman7491
Ай бұрын
change your stream from GCS to PCS
I need your expertise guidance.. 🙏🏻🙏🏻 Suppose I have ~200 sub watershed, and I want to calculate morphometric parameters of them. How to process them ? (Without doing individually)
@samarjyoti-ray
3 ай бұрын
that's a hell lot of sub-watersheds. how did you end up with that? do you have a really large study area? i suppose you're doing something wrong.
@thecopy9975
3 ай бұрын
Already done
@samarjyoti-ray
3 ай бұрын
@@thecopy9975 200 watersheds? seriously?
@thecopy9975
3 ай бұрын
@@samarjyoti-raynot only 200, actually 280.
@RamPoudel-pj3ki
Ай бұрын
@@thecopy9975 Can you help me on this?
Nice, please tell how to create stream frequency and stream texture map using arcgis
@GISRSSolution
3 жыл бұрын
Keep your eyes on this channel. I'll make a tutorial on this.
@dr.manojkashyap8009
3 жыл бұрын
@@GISRSSolution thank you . Please make in short time
How to classify drainage density into 5 classes?
@hikikomorihachiman7491
Ай бұрын
right click on that file, look for properties at the bottom, look for symbology tab, classified at 3rd, above stretched and below Unique values.
Calculation geometry te gele length disable ase kno?
@GISRSSolution
3 жыл бұрын
May be you did not change the Geographical Coordinate System to Projection Coordinate System. At first you have to change Layer/Data frame coordinate to Projection coordinate system and do same for DEM data as well. Then go to attribute and change decimal to Meter. Hope it will work.
@mijanurrahman3857
3 жыл бұрын
@@GISRSSolution How to change
@GISRSSolution
3 жыл бұрын
@@mijanurrahman3857 Layers > Properties > Coordcinate System > Projected Coordinate system >UTM > WGS 1984 > Northern Hemisphere > WGS 1984 UTM Zone 46 N Then again, Layers > Properties > General > Units > Meters For DEM data, Spatial analyst tool > Data Management tools > Projections and Transformation > Define projection > DEM as input dataset and Coordinate system as Layer
@mijanurrahman3857
3 жыл бұрын
@@GISRSSolution Thanks